WYBeads Lock With Key Screw Silver European Charms Bead for Snake Chain Bracelet Necklace Earring or Rings Ideal Gifts for Valentines Day, Anniversary Day and Birthday to your girlfriend, daughter, wife and friends. Bridal Gifts or your other special occasion you would like to make memorable. WYBeads products are 100% safe for sensitive skin. Using the Diamond Standard of technology, a micro-painted enamel makes WYBeads charms eye catching and rugged. All of the enamel process and mosaics are done under a microscope by a top-level master. The size of the screw hole about 4mm, compatible with charmsBeads,Bracelets, Biagi, Troll and Chamilia European bracelets. WYBeads is a brand of confidence and attitude. Every gemstone and Crystal undergoes rigorous screening. Whether by color, cut, and clarity, all of WYBeads's pieces achieve the highest levels of certification standards. Tell your unique story and celebrate special memories with charms.String charms featuring colorful gemstones, pearls and sparkling pavs, on our bracelet and necklace styles to create a look thats completely your own!